fmt-merge-msg.c

   1 #include "config.h"
   2 #include "refs.h"
   3 #include "object-store.h"
   4 #include "diff.h"
   5 #include "diff-merges.h"
   6 #include "revision.h"
   7 #include "tag.h"
   8 #include "string-list.h"
   9 #include "branch.h"
  10 #include "fmt-merge-msg.h"
  11 #include "commit-reach.h"
  12
  13 static int use_branch_desc;
  14 static int suppress_dest_pattern_seen;
  15 static struct string_list suppress_dest_patterns = STRING_LIST_INIT_DUP;
  16
  17 int fmt_merge_msg_config(const char *key, const char *value, void *cb)
  18 {
  19         if (!strcmp(key, "merge.log") || !strcmp(key, "merge.summary")) {
  20                 int is_bool;
  21                 merge_log_config = git_config_bool_or_int(key, value, &is_bool);
  22                 if (!is_bool && merge_log_config < 0)
  23                         return error("%s: negative length %s", key, value);
  24                 if (is_bool && merge_log_config)
  25                         merge_log_config = DEFAULT_MERGE_LOG_LEN;
  26         } else if (!strcmp(key, "merge.branchdesc")) {
  27                 use_branch_desc = git_config_bool(key, value);
  28         } else if (!strcmp(key, "merge.suppressdest")) {
  29                 if (!value)
  30                         return config_error_nonbool(key);
  31                 if (!*value)
  32                         string_list_clear(&suppress_dest_patterns, 0);
  33                 else
  34                         string_list_append(&suppress_dest_patterns, value);
  35                 suppress_dest_pattern_seen = 1;
  36         } else {
  37                 return git_default_config(key, value, cb);
  38         }
  39         return 0;
  40 }
  41
  42 /* merge data per repository where the merged tips came from */
  43 struct src_data {
  44         struct string_list branch, tag, r_branch, generic;
  45         int head_status;
  46 };
  47
  48 struct origin_data {
  49         struct object_id oid;
  50         unsigned is_local_branch:1;
  51 };
  52
  53 static void init_src_data(struct src_data *data)
  54 {
  55         data->branch.strdup_strings = 1;
  56         data->tag.strdup_strings = 1;
  57         data->r_branch.strdup_strings = 1;
  58         data->generic.strdup_strings = 1;
  59 }
  60
  61 static struct string_list srcs = STRING_LIST_INIT_DUP;
  62 static struct string_list origins = STRING_LIST_INIT_DUP;
  63
  64 struct merge_parents {
  65         int alloc, nr;
  66         struct merge_parent {
  67                 struct object_id given;
  68                 struct object_id commit;
  69                 unsigned char used;
  70         } *item;
  71 };
  72
  73 /*
  74  * I know, I know, this is inefficient, but you won't be pulling and merging
  75  * hundreds of heads at a time anyway.
  76  */
  77 static struct merge_parent *find_merge_parent(struct merge_parents *table,
  78                                               struct object_id *given,
  79                                               struct object_id *commit)
  80 {
  81         int i;
  82         for (i = 0; i < table->nr; i++) {
  83                 if (given && !oideq(&table->item[i].given, given))
  84                         continue;
  85                 if (commit && !oideq(&table->item[i].commit, commit))
  86                         continue;
  87                 return &table->item[i];
  88         }
  89         return NULL;
  90 }
  91
  92 static void add_merge_parent(struct merge_parents *table,
  93                              struct object_id *given,
  94                              struct object_id *commit)
  95 {
  96         if (table->nr && find_merge_parent(table, given, commit))
  97                 return;
  98         ALLOC_GROW(table->item, table->nr + 1, table->alloc);
  99         oidcpy(&table->item[table->nr].given, given);
 100         oidcpy(&table->item[table->nr].commit, commit);
 101         table->item[table->nr].used = 0;
 102         table->nr++;
 103 }
 104
 105 static int handle_line(char *line, struct merge_parents *merge_parents)
 106 {
 107         int i, len = strlen(line);
 108         struct origin_data *origin_data;
 109         char *src;
 110         const char *origin, *tag_name;
 111         struct src_data *src_data;
 112         struct string_list_item *item;
 113         int pulling_head = 0;
 114         struct object_id oid;
 115         const unsigned hexsz = the_hash_algo->hexsz;
 116
 117         if (len < hexsz + 3 || line[hexsz] != '\t')
 118                 return 1;
 119
 120         if (starts_with(line + hexsz + 1, "not-for-merge"))
 121                 return 0;
 122
 123         if (line[hexsz + 1] != '\t')
 124                 return 2;
 125
 126         i = get_oid_hex(line, &oid);
 127         if (i)
 128                 return 3;
 129
 130         if (!find_merge_parent(merge_parents, &oid, NULL))
 131                 return 0; /* subsumed by other parents */
 132
 133         CALLOC_ARRAY(origin_data, 1);
 134         oidcpy(&origin_data->oid, &oid);
 135
 136         if (line[len - 1] == '\n')
 137                 line[len - 1] = 0;
 138         line += hexsz + 2;
 139
 140         /*
 141          * At this point, line points at the beginning of comment e.g.
 142          * "branch 'frotz' of git://that/repository.git".
 143          * Find the repository name and point it with src.
 144          */
 145         src = strstr(line, " of ");
 146         if (src) {
 147                 *src = 0;
 148                 src += 4;
 149                 pulling_head = 0;
 150         } else {
 151                 src = line;
 152                 pulling_head = 1;
 153         }
 154
 155         item = unsorted_string_list_lookup(&srcs, src);
 156         if (!item) {
 157                 item = string_list_append(&srcs, src);
 158                 item->util = xcalloc(1, sizeof(struct src_data));
 159                 init_src_data(item->util);
 160         }
 161         src_data = item->util;
 162
 163         if (pulling_head) {
 164                 origin = src;
 165                 src_data->head_status |= 1;
 166         } else if (skip_prefix(line, "branch ", &origin)) {
 167                 origin_data->is_local_branch = 1;
 168                 string_list_append(&src_data->branch, origin);
 169                 src_data->head_status |= 2;
 170         } else if (skip_prefix(line, "tag ", &tag_name)) {
 171                 origin = line;
 172                 string_list_append(&src_data->tag, tag_name);
 173                 src_data->head_status |= 2;
 174         } else if (skip_prefix(line, "remote-tracking branch ", &origin)) {
 175                 string_list_append(&src_data->r_branch, origin);
 176                 src_data->head_status |= 2;
 177         } else {
 178                 origin = src;
 179                 string_list_append(&src_data->generic, line);
 180                 src_data->head_status |= 2;
 181         }
 182
 183         if (!strcmp(".", src) || !strcmp(src, origin)) {
 184                 int len = strlen(origin);
 185                 if (origin[0] == '\'' && origin[len - 1] == '\'')
 186                         origin = xmemdupz(origin + 1, len - 2);
 187         } else
 188                 origin = xstrfmt("%s of %s", origin, src);
 189         if (strcmp(".", src))
 190                 origin_data->is_local_branch = 0;
 191         string_list_append(&origins, origin)->util = origin_data;
 192         return 0;
 193 }
 194
 195 static void print_joined(const char *singular, const char *plural,
 196                 struct string_list *list, struct strbuf *out)
 197 {
 198         if (list->nr == 0)
 199                 return;
 200         if (list->nr == 1) {
 201                 strbuf_addf(out, "%s%s", singular, list->items[0].string);
 202         } else {
 203                 int i;
 204                 strbuf_addstr(out, plural);
 205                 for (i = 0; i < list->nr - 1; i++)
 206                         strbuf_addf(out, "%s%s", i > 0 ? ", " : "",
 207                                     list->items[i].string);
 208                 strbuf_addf(out, " and %s", list->items[list->nr - 1].string);
 209         }
 210 }
 211
 212 static void add_branch_desc(struct strbuf *out, const char *name)
 213 {
 214         struct strbuf desc = STRBUF_INIT;
 215
 216         if (!read_branch_desc(&desc, name)) {
 217                 const char *bp = desc.buf;
 218                 while (*bp) {
 219                         const char *ep = strchrnul(bp, '\n');
 220                         if (*ep)
 221                                 ep++;
 222                         strbuf_addf(out, "  : %.*s", (int)(ep - bp), bp);
 223                         bp = ep;
 224                 }
 225                 strbuf_complete_line(out);
 226         }
 227         strbuf_release(&desc);
 228 }
 229
 230 #define util_as_integral(elem) ((intptr_t)((elem)->util))
 231
 232 static void record_person_from_buf(int which, struct string_list *people,
 233                                    const char *buffer)
 234 {
 235         char *name_buf, *name, *name_end;
 236         struct string_list_item *elem;
 237         const char *field;
 238
 239         field = (which == 'a') ? "\nauthor " : "\ncommitter ";
 240         name = strstr(buffer, field);
 241         if (!name)
 242                 return;
 243         name += strlen(field);
 244         name_end = strchrnul(name, '<');
 245         if (*name_end)
 246                 name_end--;
 247         while (isspace(*name_end) && name <= name_end)
 248                 name_end--;
 249         if (name_end < name)
 250                 return;
 251         name_buf = xmemdupz(name, name_end - name + 1);
 252
 253         elem = string_list_lookup(people, name_buf);
 254         if (!elem) {
 255                 elem = string_list_insert(people, name_buf);
 256                 elem->util = (void *)0;
 257         }
 258         elem->util = (void*)(util_as_integral(elem) + 1);
 259         free(name_buf);
 260 }
 261
 262
 263 static void record_person(int which, struct string_list *people,
 264                           struct commit *commit)
 265 {
 266         const char *buffer = get_commit_buffer(commit, NULL);
 267         record_person_from_buf(which, people, buffer);
 268         unuse_commit_buffer(commit, buffer);
 269 }
 270
 271 static int cmp_string_list_util_as_integral(const void *a_, const void *b_)
 272 {
 273         const struct string_list_item *a = a_, *b = b_;
 274         return util_as_integral(b) - util_as_integral(a);
 275 }
 276
 277 static void add_people_count(struct strbuf *out, struct string_list *people)
 278 {
 279         if (people->nr == 1)
 280                 strbuf_addstr(out, people->items[0].string);
 281         else if (people->nr == 2)
 282                 strbuf_addf(out, "%s (%d) and %s (%d)",
 283                             people->items[0].string,
 284                             (int)util_as_integral(&people->items[0]),
 285                             people->items[1].string,
 286                             (int)util_as_integral(&people->items[1]));
 287         else if (people->nr)
 288                 strbuf_addf(out, "%s (%d) and others",
 289                             people->items[0].string,
 290                             (int)util_as_integral(&people->items[0]));
 291 }
 292
 293 static void credit_people(struct strbuf *out,
 294                           struct string_list *them,
 295                           int kind)
 296 {
 297         const char *label;
 298         const char *me;
 299
 300         if (kind == 'a') {
 301                 label = "By";
 302                 me = git_author_info(IDENT_NO_DATE);
 303         } else {
 304                 label = "Via";
 305                 me = git_committer_info(IDENT_NO_DATE);
 306         }
 307
 308         if (!them->nr ||
 309             (them->nr == 1 &&
 310              me &&
 311              skip_prefix(me, them->items->string, &me) &&
 312              starts_with(me, " <")))
 313                 return;
 314         strbuf_addf(out, "\n%c %s ", comment_line_char, label);
 315         add_people_count(out, them);
 316 }
 317
 318 static void add_people_info(struct strbuf *out,
 319                             struct string_list *authors,
 320                             struct string_list *committers)
 321 {
 322         QSORT(authors->items, authors->nr,
 323               cmp_string_list_util_as_integral);
 324         QSORT(committers->items, committers->nr,
 325               cmp_string_list_util_as_integral);
 326
 327         credit_people(out, authors, 'a');
 328         credit_people(out, committers, 'c');
 329 }
 330
 331 static void shortlog(const char *name,
 332                      struct origin_data *origin_data,
 333                      struct commit *head,
 334                      struct rev_info *rev,
 335                      struct fmt_merge_msg_opts *opts,
 336                      struct strbuf *out)
 337 {
 338         int i, count = 0;
 339         struct commit *commit;
 340         struct object *branch;
 341         struct string_list subjects = STRING_LIST_INIT_DUP;
 342         struct string_list authors = STRING_LIST_INIT_DUP;
 343         struct string_list committers = STRING_LIST_INIT_DUP;
 344         int flags = UNINTERESTING | TREESAME | SEEN | SHOWN | ADDED;
 345         struct strbuf sb = STRBUF_INIT;
 346         const struct object_id *oid = &origin_data->oid;
 347         int limit = opts->shortlog_len;
 348
 349         branch = deref_tag(the_repository, parse_object(the_repository, oid),
 350                            oid_to_hex(oid),
 351                            the_hash_algo->hexsz);
 352         if (!branch || branch->type != OBJ_COMMIT)
 353                 return;
 354
 355         setup_revisions(0, NULL, rev, NULL);
 356         add_pending_object(rev, branch, name);
 357         add_pending_object(rev, &head->object, "^HEAD");
 358         head->object.flags |= UNINTERESTING;
 359         if (prepare_revision_walk(rev))
 360                 die("revision walk setup failed");
 361         while ((commit = get_revision(rev)) != NULL) {
 362                 struct pretty_print_context ctx = {0};
 363
 364                 if (commit->parents && commit->parents->next) {
 365                         /* do not list a merge but count committer */
 366                         if (opts->credit_people)
 367                                 record_person('c', &committers, commit);
 368                         continue;
 369                 }
 370                 if (!count && opts->credit_people)
 371                         /* the 'tip' committer */
 372                         record_person('c', &committers, commit);
 373                 if (opts->credit_people)
 374                         record_person('a', &authors, commit);
 375                 count++;
 376                 if (subjects.nr > limit)
 377                         continue;
 378
 379                 format_commit_message(commit, "%s", &sb, &ctx);
 380                 strbuf_ltrim(&sb);
 381
 382                 if (!sb.len)
 383                         string_list_append(&subjects,
 384                                            oid_to_hex(&commit->object.oid));
 385                 else
 386                         string_list_append_nodup(&subjects,
 387                                                  strbuf_detach(&sb, NULL));
 388         }
 389
 390         if (opts->credit_people)
 391                 add_people_info(out, &authors, &committers);
 392         if (count > limit)
 393                 strbuf_addf(out, "\n* %s: (%d commits)\n", name, count);
 394         else
 395                 strbuf_addf(out, "\n* %s:\n", name);
 396
 397         if (origin_data->is_local_branch && use_branch_desc)
 398                 add_branch_desc(out, name);
 399
 400         for (i = 0; i < subjects.nr; i++)
 401                 if (i >= limit)
 402                         strbuf_addstr(out, "  ...\n");
 403                 else
 404                         strbuf_addf(out, "  %s\n", subjects.items[i].string);
 405
 406         clear_commit_marks((struct commit *)branch, flags);
 407         clear_commit_marks(head, flags);
 408         free_commit_list(rev->commits);
 409         rev->commits = NULL;
 410         rev->pending.nr = 0;
 411
 412         string_list_clear(&authors, 0);
 413         string_list_clear(&committers, 0);
 414         string_list_clear(&subjects, 0);
 415 }
 416
 417 /*
 418  * See if dest_branch matches with any glob pattern on the
 419  * suppress_dest_patterns list.
 420  *
 421  * We may want to also allow negative matches e.g. ":!glob" like we do
 422  * for pathspec, but for now, let's keep it simple and stupid.
 423  */
 424 static int dest_suppressed(const char *dest_branch)
 425 {
 426         struct string_list_item *item;
 427
 428         for_each_string_list_item(item, &suppress_dest_patterns) {
 429                 if (!wildmatch(item->string, dest_branch, WM_PATHNAME))
 430                         return 1;
 431         }
 432         return 0;
 433 }
 434
 435 static void fmt_merge_msg_title(struct strbuf *out,
 436                                 const char *current_branch)
 437 {
 438         int i = 0;
 439         char *sep = "";
 440
 441         strbuf_addstr(out, "Merge ");
 442         for (i = 0; i < srcs.nr; i++) {
 443                 struct src_data *src_data = srcs.items[i].util;
 444                 const char *subsep = "";
 445
 446                 strbuf_addstr(out, sep);
 447                 sep = "; ";
 448
 449                 if (src_data->head_status == 1) {
 450                         strbuf_addstr(out, srcs.items[i].string);
 451                         continue;
 452                 }
 453                 if (src_data->head_status == 3) {
 454                         subsep = ", ";
 455                         strbuf_addstr(out, "HEAD");
 456                 }
 457                 if (src_data->branch.nr) {
 458                         strbuf_addstr(out, subsep);
 459                         subsep = ", ";
 460                         print_joined("branch ", "branches ", &src_data->branch,
 461                                         out);
 462                 }
 463                 if (src_data->r_branch.nr) {
 464                         strbuf_addstr(out, subsep);
 465                         subsep = ", ";
 466                         print_joined("remote-tracking branch ", "remote-tracking branches ",
 467                                         &src_data->r_branch, out);
 468                 }
 469                 if (src_data->tag.nr) {
 470                         strbuf_addstr(out, subsep);
 471                         subsep = ", ";
 472                         print_joined("tag ", "tags ", &src_data->tag, out);
 473                 }
 474                 if (src_data->generic.nr) {
 475                         strbuf_addstr(out, subsep);
 476                         print_joined("commit ", "commits ", &src_data->generic,
 477                                         out);
 478                 }
 479                 if (strcmp(".", srcs.items[i].string))
 480                         strbuf_addf(out, " of %s", srcs.items[i].string);
 481         }
 482
 483         if (!dest_suppressed(current_branch))
 484                 strbuf_addf(out, " into %s", current_branch);
 485         strbuf_addch(out, '\n');
 486 }
 487
 488 static void fmt_tag_signature(struct strbuf *tagbuf,
 489                               struct strbuf *sig,
 490                               const char *buf,
 491                               unsigned long len)
 492 {
 493         const char *tag_body = strstr(buf, "\n\n");
 494         if (tag_body) {
 495                 tag_body += 2;
 496                 strbuf_add(tagbuf, tag_body, buf + len - tag_body);
 497         }
 498         strbuf_complete_line(tagbuf);
 499         if (sig->len) {
 500                 strbuf_addch(tagbuf, '\n');
 501                 strbuf_add_commented_lines(tagbuf, sig->buf, sig->len);
 502         }
 503 }
 504
 505 static void fmt_merge_msg_sigs(struct strbuf *out)
 506 {
 507         int i, tag_number = 0, first_tag = 0;
 508         struct strbuf tagbuf = STRBUF_INIT;
 509
 510         for (i = 0; i < origins.nr; i++) {
 511                 struct object_id *oid = origins.items[i].util;
 512                 enum object_type type;
 513                 unsigned long size;
 514                 char *buf = read_object_file(oid, &type, &size);
 515                 char *origbuf = buf;
 516                 unsigned long len = size;
 517                 struct signature_check sigc = { NULL };
 518                 struct strbuf payload = STRBUF_INIT, sig = STRBUF_INIT;
 519
 520                 if (!buf || type != OBJ_TAG)
 521                         goto next;
 522
 523                 if (!parse_signature(buf, size, &payload, &sig))
 524                         ;/* merely annotated */
 525                 else {
 526                         buf = payload.buf;
 527                         len = payload.len;
 528                         if (check_signature(payload.buf, payload.len, sig.buf,
 529                                          sig.len, &sigc) &&
 530                                 !sigc.gpg_output)
 531                                 strbuf_addstr(&sig, "gpg verification failed.\n");
 532                         else
 533                                 strbuf_addstr(&sig, sigc.gpg_output);
 534                 }
 535                 signature_check_clear(&sigc);
 536
 537                 if (!tag_number++) {
 538                         fmt_tag_signature(&tagbuf, &sig, buf, len);
 539                         first_tag = i;
 540                 } else {
 541                         if (tag_number == 2) {
 542                                 struct strbuf tagline = STRBUF_INIT;
 543                                 strbuf_addch(&tagline, '\n');
 544                                 strbuf_add_commented_lines(&tagline,
 545                                                 origins.items[first_tag].string,
 546                                                 strlen(origins.items[first_tag].string));
 547                                 strbuf_insert(&tagbuf, 0, tagline.buf,
 548                                               tagline.len);
 549                                 strbuf_release(&tagline);
 550                         }
 551                         strbuf_addch(&tagbuf, '\n');
 552                         strbuf_add_commented_lines(&tagbuf,
 553                                         origins.items[i].string,
 554                                         strlen(origins.items[i].string));
 555                         fmt_tag_signature(&tagbuf, &sig, buf, len);
 556                 }
 557                 strbuf_release(&payload);
 558                 strbuf_release(&sig);
 559         next:
 560                 free(origbuf);
 561         }
 562         if (tagbuf.len) {
 563                 strbuf_addch(out, '\n');
 564                 strbuf_addbuf(out, &tagbuf);
 565         }
 566         strbuf_release(&tagbuf);
 567 }
 568
 569 static void find_merge_parents(struct merge_parents *result,
 570                                struct strbuf *in, struct object_id *head)
 571 {
 572         struct commit_list *parents;
 573         struct commit *head_commit;
 574         int pos = 0, i, j;
 575
 576         parents = NULL;
 577         while (pos < in->len) {
 578                 int len;
 579                 char *p = in->buf + pos;
 580                 char *newline = strchr(p, '\n');
 581                 const char *q;
 582                 struct object_id oid;
 583                 struct commit *parent;
 584                 struct object *obj;
 585
 586                 len = newline ? newline - p : strlen(p);
 587                 pos += len + !!newline;
 588
 589                 if (parse_oid_hex(p, &oid, &q) ||
 590                     q[0] != '\t' ||
 591                     q[1] != '\t')
 592                         continue; /* skip not-for-merge */
 593                 /*
 594                  * Do not use get_merge_parent() here; we do not have
 595                  * "name" here and we do not want to contaminate its
 596                  * util field yet.
 597                  */
 598                 obj = parse_object(the_repository, &oid);
 599                 parent = (struct commit *)peel_to_type(NULL, 0, obj, OBJ_COMMIT);
 600                 if (!parent)
 601                         continue;
 602                 commit_list_insert(parent, &parents);
 603                 add_merge_parent(result, &obj->oid, &parent->object.oid);
 604         }
 605         head_commit = lookup_commit(the_repository, head);
 606         if (head_commit)
 607                 commit_list_insert(head_commit, &parents);
 608         reduce_heads_replace(&parents);
 609
 610         while (parents) {
 611                 struct commit *cmit = pop_commit(&parents);
 612                 for (i = 0; i < result->nr; i++)
 613                         if (oideq(&result->item[i].commit, &cmit->object.oid))
 614                                 result->item[i].used = 1;
 615         }
 616
 617         for (i = j = 0; i < result->nr; i++) {
 618                 if (result->item[i].used) {
 619                         if (i != j)
 620                                 result->item[j] = result->item[i];
 621                         j++;
 622                 }
 623         }
 624         result->nr = j;
 625 }
 626
 627
 628 int fmt_merge_msg(struct strbuf *in, struct strbuf *out,
 629                   struct fmt_merge_msg_opts *opts)
 630 {
 631         int i = 0, pos = 0;
 632         struct object_id head_oid;
 633         const char *current_branch;
 634         void *current_branch_to_free;
 635         struct merge_parents merge_parents;
 636
 637         if (!suppress_dest_pattern_seen) {
 638                 string_list_append(&suppress_dest_patterns, "main");
 639                 string_list_append(&suppress_dest_patterns, "master");
 640         }
 641
 642         memset(&merge_parents, 0, sizeof(merge_parents));
 643
 644         /* get current branch */
 645         current_branch = current_branch_to_free =
 646                 resolve_refdup("HEAD", RESOLVE_REF_READING, &head_oid, NULL);
 647         if (!current_branch)
 648                 die("No current branch");
 649         if (starts_with(current_branch, "refs/heads/"))
 650                 current_branch += 11;
 651
 652         find_merge_parents(&merge_parents, in, &head_oid);
 653
 654         /* get a line */
 655         while (pos < in->len) {
 656                 int len;
 657                 char *newline, *p = in->buf + pos;
 658
 659                 newline = strchr(p, '\n');
 660                 len = newline ? newline - p : strlen(p);
 661                 pos += len + !!newline;
 662                 i++;
 663                 p[len] = 0;
 664                 if (handle_line(p, &merge_parents))
 665                         die("error in line %d: %.*s", i, len, p);
 666         }
 667
 668         if (opts->add_title && srcs.nr)
 669                 fmt_merge_msg_title(out, current_branch);
 670
 671         if (origins.nr)
 672                 fmt_merge_msg_sigs(out);
 673
 674         if (opts->shortlog_len) {
 675                 struct commit *head;
 676                 struct rev_info rev;
 677
 678                 head = lookup_commit_or_die(&head_oid, "HEAD");
 679                 repo_init_revisions(the_repository, &rev, NULL);
 680                 rev.commit_format = CMIT_FMT_ONELINE;
 681                 diff_merges_suppress(&rev);
 682                 rev.limited = 1;
 683
 684                 strbuf_complete_line(out);
 685
 686                 for (i = 0; i < origins.nr; i++)
 687                         shortlog(origins.items[i].string,
 688                                  origins.items[i].util,
 689                                  head, &rev, opts, out);
 690         }
 691
 692         strbuf_complete_line(out);
 693         free(current_branch_to_free);
 694         free(merge_parents.item);
 695         return 0;
 696 }